8166340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:677

約数の個数: 72

約数和(自身を含む): 21517272

約数和(自身を除く): 13350932

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 641, 910, 980, 1274, 1282, 1820, 2548, 2564, 3185, 3205, 4487, 6370, 6410, 8333, 8974, 12740, 12820, 16666, 17948, 22435, 31409, 33332, 41665, 44870, 58331, 62818, 83330, 89740, 116662, 125636, 157045, 166660, 233324, 291655, 314090, 408317, 583310, 628180, 816634, 1166620, 1633268, 2041585, 4083170, 8166340]

約数ペア:

[(1, 8166340), (2, 4083170), (4, 2041585), (5, 1633268), (7, 1166620), (10, 816634), (13, 628180), (14, 583310), (20, 408317), (26, 314090), (28, 291655), (35, 233324), (49, 166660), (52, 157045), (65, 125636), (70, 116662), (91, 89740), (98, 83330), (130, 62818), (140, 58331), (182, 44870), (196, 41665), (245, 33332), (260, 31409), (364, 22435), (455, 17948), (490, 16666), (637, 12820), (641, 12740), (910, 8974), (980, 8333), (1274, 6410), (1282, 6370), (1820, 4487), (2548, 3205), (2564, 3185)]